Envelop.



L1G. VAN R'IPER.

ENVELOP, APPLIOATION rum) 1550.10, 1908. I

Patented Oct.19,1909.

A Y 1 1 ,W W LL? 1 m, 5. w 6

' WITNESSES UNITED srnrns a -11m orrion.

LEWIS o; VAN RIPER, or lynv t'ronx, N. Y.

Patented Oct. 19, 1909. 466,785.

Be it known that LLEwisC. VAN RIPER, a citizen of the'Unite'd States and a resident of the city of New York, boroughof Manhattan, m the county and State of New York,

. have invented a new and ImprovedEnvelop, of whichthe following is a' full, clear, and

exact description.

This invention relates to envelops. An object of the invention is to provide an envelop'with an ungummed flap which may be held within-a pocket, or may be removed therefrom in order to allow the contents of the envelop to be inspected by the postal au- 'thorities. The envelop is provided with the ordinary gummed flap, which is intended tobeseaIed, in order to give the envelop the appearance ofa sealed envelop and yet allow the same to bc sentthrough the mailat the posta e rates required for unsealed matter.

in urther object of the invention is to provide means for aiding in the retention of the matter to be transported by the envelop,

andto prevent such matter from forcing out the ungummed flap.

The invention consistsin the construction and combination of parts, to be more fully described hereinafter and particularly set forth in the claims.

Reference is to be had to the accompanyin'g drawings, forming a part of this specification, in which similar characters-of referonce indicate corresponding parts in all the views, and in which- Figure 1 is a view showing a convenient form of blank from which the envelop may be constructed; Fig. 2 is a view showing the end flaps overlapped to form the envelop with the top and bottom flaps open; Fig. 3 is a view showing the envelop closed and scaled, ready for delivery; and Fig. 4 is a section taken on the line 4-4: in Fig. 3, but on an enlarged scale.

The envelop may comprise a front portion 1 having end flaps 2 and 3, a top flap 4 and a bottom flap 5, all connected to said front portion 1: I

In forming the envelop, the flap 2 may be folded upon the front portion 1, along the line 8. The surface of the flap 2, WhlCh is then uppermost, may be provided with strips of gum 9 and 10. The flap 3 may then be folded along the line 12 to overlap the front portion 1 and also the flap 2, and be secured strips or portions 9-and 10. This will form a pocket 13 between the flap 2 and the flap 3, which now constitute the back of the envelop. It will also be noted that the back of the envelop comprises portions overlying the flap 5 on opposite sides thereof. The inner face of the top flap 4 may be provided with gummed edges, envelops.

.\sa means for-preventing the flap 5 from belng forced outwardly by the weight of the article'carried by the envelop, a strip 14 may be formed integral with one of the end flaps, or said strip may be formed of a separate piece of material and pasted u on either of said end flaps. Said stri as is customary in ordinary 14 is intended to be turned upwardly, as a ong the line 15,

and then bent back-upon itself at 16 to form a double fold, as shown in Fig. 4. Said strip may also be pasted to the inner face of the front portion 1 near its lower edge.

In using the envelop, the flap 5 is retained in the pocket 13. The top fla 4 is turned upwardly so that the top of t e envelop is open, whereupon the article 18 may be inserted in the envelop,

and its lower edge be held between the double fold 16 and the 011)- posing face of the flap 2. -In case the doub fold 16 is omitted from 'the envelop, the

article is merely retained bythe bottom flap 5. The top flap 4 may then be sealed, thus giving the article the a envelop. The bottom ap 5 may be readily removed from the pocket 13, in order to allow of postal inspection.

From the construction above set forth, it will be seen that the envelop is so constructed pearance of a sealed as to allow the contents to be readily inserted and inspected, and yet provides a durable construction which overcomes'the objectionable features which are present in the.envelops now in use.

ll'leretofore envelops have been constructed with a removable flap at the end of the envelop, but such construction is comparatively frail. When heavy or thick inclosures are inserted, they have a tendency to gap open at the ends.-

Envelops with unglnnmed flaps at the top are also unsatisfactory, for the reason that the flaps must be inserted after placing the contents in the cnvelops, and this procedure causes the opening to stretch or tear, thus leaving the contents insecure and liable to upon the flap 2 by ineiins of the gummed' fallout in transportation, besides giving the portions, saidback portion forming between them a envelop an open while by the use of my envelop, these features are obviated, and the flap is inclosed between two layers of paper, and in its construction may be folded over flap 2 before flap 3 is pasted down.

Another advantage gained by this envelop is that it much more convenient to handle, on account of its even thickness. Particularly is this true in addressing envelops on a typewriter, it being possible for an operator to address a great many more in the same period of time and in a much neater manner than in the case with those envelops having the open-end flaps. As the edges of flap 5 are thus concealed, insertions will be made in the regular way from the top opening in the envelop, after which flap 4 is folded over andsealed in the ordinary manner. By having the loose flap 5 folded in between flaps 2 and 3, the envelop has a neat appearance, and the fact that it is an unsealed envelop will pass unnoticed even though the insertions are thick and bulky, because the pressure from the inside will merely tend to secure flap 5 more firmly between the two end flaps 2 and 3.

Having thus described my invention, I claim'as new and esire to secure by Letters Patent 1. An envelop, comprisin front and back eing formed of a plurality of flaps including oppositely-disposed -end flaps overlapping each other and pocket .open along one edge, an ungummed ins ection flap normally inserted within said ocket, and a gumnied sealin flap at the e ge opposite to said ungumme flap and sealed to said end flaps after the insertion of inclosures within the envelop.

2. An envelop, comprisin front and back ortions, said back portion being formed of our flaps integral with said front portion and extending outwardly from the edges thereof, two of said flaps constituting end flaps and overlapped and secured together along their edges ,to form a ocket therebetween, and open along one e go, another of said flaps being normally inserted within and careless appearance,

said pocket at the open end thereof and removable therefrom for inspection purposes and the other of said flaps being sealed to said end flaps after the msertion of inclosures in said envelop.

3. An envelop, comprising front and back portions, a gummed' sealing flap, an ungummed inspection flap and end flaps made rom a single piece of material, said end flaps overlapping each other and forming said back portion, and a ocket within the said back portion remove 1y receiving said ungummed inspection flap within the said pocket during its. manufacture and before the inclosure is laced within said envelop, said sealing flap eing gummed and left unsealed in course of manufacture to allow the inserting of inclosures in said envelop without removin said ungummed inspection flap from sai pocket.

4. An envelop having a gummed sealing flap, an ungummed inspection flap and end fia s made from one piece of material, said en flaps overlapping each other and forming a ocket between them, said pocket rcniovably receiving said ungummed inspection flap in the course of manufacture and before theinclosures are laced within said nvelop, said sealing flap eing gummed but left unsealed in course of manufacture for the purpose of inserting inclosures within said envelop without removing said inspection flap from said pocket.

5., An envelop, comprising a front portion and a backortion, said back portion including a poc ret 0 )en along one edge thereof and an ungumme flap for closing the. lastmentioned edge of the envelop and normally ,dis osed within said pocket and substantia y concealedvfrom view both from the interior and the exterior of the envelop, and a gummed flap for sealing the envelop after the insertion of inclosures.

A In witness whereof I have signed my name V to this specification in subscribing witnesses. LEWIS C. VAN RIPER.

' Witnesses:

WILLIAM M. J UDD, Josarn M. Davana.

the presence of two 

